3.1 BEFORE YOU START
1 Calibrate the conductivity meter, see Section .5 on page . 5 en-10
2 As the test is extremely sensitive, clean latex or nitrile gloves
should be worn during the extraction of soluble salts to prevent
contamination of the surface.
3.2 TEST PROCEDURE
1 Remove the printed protective backing
and foam centre from the Bresle
patch.
2 Apply the patch to the surface
pressing firmly around the perimeter of
the patch to ensure a complete seal. If
using the Elcometer 135C Bresle Test
Patch, remove the clear protective film
cover using the orange tab.
3 Fill a syringe with 3ml of pure water.
4 Insert the syringe into the patch
through the spongy foam perimeter at
an angle of approximately 30° to the
test surface so that it passes through
the foam into the compartment formed
by the elastomer film and the test
surface. If the patch is positioned in a
difficult position bend the needle as
required.
5 Inject the pure water into the patch.
Do not remove the needle.
If necessary, any air can be evacuated
into the syringe and allowed to stay above
the water in the syringe. Take care not to
re-insert the air during steps 6 and 7.
b
6 During a suitable period of time ,
without removing the needle, suck and
re-inject the solution at least four
c
times .
3 TEST PROCEDURE: ISO 8502-6 / ISO 8502-9
www.elcometer.com
en-3
R
b
On un-pitted blast-cleaned areas, a period of 10 minutes has been found to be satisfactory, though this
time should be agreed by the interested parties.
c
During steps 6 and 7, it is essential that no solution is lost. If any solution is lost, the test shall be rejected.